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CFL: COMPACT FLUORESCENT LAMPS

A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light, and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent lamp; some types fit into light fixtures formerly used for incandescent lamps. The lamps use a tube which is curved or folded to fit into the space of an incandescent bulb, and a compact electronic ballast in the base of the lamp.continue..



A compact fluorescent lamp will initially cost more than an incandescent bulb, but because it lasts longer and costs so much less to run, it will prove to be a better bargain over time.  Just keep in mind that light bulbs cost much more to run than to buy in the first place.continue..

Edmund Germer, Friedrich Meyer, and Hans Spanner then patented a high pressure vapor lamp in 1927. George Inman later teamed with General Electric to create a practical fluorescent lamp, sold in 1938 and patented in 1941. Circular and U-shaped lamps were devised to reduce the length of fluorescent light fixtures. The first fluorescent bulb and fixture were displayed to the general public at the 1939 New York World's Fair.continue..

Electrical construction
Princip of function we explain on a LUXAR 11W lamp. Circuit contains supply section, which includes interference suppressor L2, fuse F1, bridge rectifier from 1N4007 diodes and filtering capacitor C4. Starting section includes D1, C2, R6 and diac. D2, D3, R1, R3 have protect function. Other parts have normal operation function.continue..

The benefits of CFLs have been grabbing headlines for the last two to three years. Indeed, if you were to focus only on the buzz surrounding CFLs, you might think that changing out your incandescent bulbs in favor of their spiral cousins would be a complete no-brainer. As we'll see later, CFLs do present some challenges and concerns. But their benefits are far more numerous.continue..

Myths Vs. Reality
Fluorescent light bulbs get a bad, and badly outdated, rap. Technological advances in the last twenty years have introduced the compact fluorescent light bulb (CFL) with electronic ballast and, in the process, have eliminated three of the four most common objections to fluorescent lights. continue..

Compact fluorescent lamps (CFLs) are replacing incandescent light bulbs at a rapid rate due to their tremendous energy savings and longer lifetime. Additional energy savings can be achieved by dimming, but the electronic ballast required to control the lamp has a higher cost and is difficult to design. This article explains how a CFL works, how to dim them, and describes a solution for 3-way dimming applications. continue..
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